Comparison of PCDD/F levels and profiles in fly ash samples from multiple industrial thermal sources
文献类型：期刊论文
| 作者 | Liu, Guorui; Jiang, Xiaoxu; Wang, Mei; Dong, Shujun; Zheng, Minghui |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2015-08 |
| 卷号 | 133期号:1页码:68-74 |
| 关键词 | Dioxins Persistent organic pollutants Profile Fly ash Industrial emission |
| 英文摘要 | A comprehensive comparison of the levels and profiles of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) in fly ash samples from multiple industrial sources may help to prioritize sources and to understand discrepancies in profiles. In this study, PCDD/F data from 113 fly ash samples from 14 sources reported in previous studies were summarized and compared. The highest PCDD/F levels occurred in samples from secondary copper smelting (SCu). Although PCDD/F levels from secondary zinc smelting (SZn) were slightly lower than those of SCu, the PCDD/F profiles varied widely between the two sources. For SCu, more chlorinated homologs were dominant, with highest degrees of chlorination being 6.6 for PCDF and 7.2 for PCDD. For SZn, less chlorinated homologs were dominant, with lowest degrees of chlorination being 4.4 for PCDF and 4.8 for PCDD. We speculate that copper and zinc might promote PCDD/F formation by catalyzing different pathways of thermal reactions. Diagnostic ratios of specific PCDD/F congeners for different sources were suggested to identify potential sources of PCDD/Fs in the environment. Equations describing correlations between congeners and PCDD/F toxic equivalents were established, which may be useful for rapid and inexpensive screening of the toxic levels of PCDD/Fs in fly ash samples. (C) 2015 Elsevier Ltd. All rights reserved. |
| 研究领域[WOS] | Environmental Sciences |
| WOS记录号 | WOS:000355883100010 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32540]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Guorui,Jiang, Xiaoxu,Wang, Mei,et al. Comparison of PCDD/F levels and profiles in fly ash samples from multiple industrial thermal sources[J]. CHEMOSPHERE,2015,133(1):68-74. |
| APA | Liu, Guorui,Jiang, Xiaoxu,Wang, Mei,Dong, Shujun,&Zheng, Minghui.(2015).Comparison of PCDD/F levels and profiles in fly ash samples from multiple industrial thermal sources.CHEMOSPHERE,133(1),68-74. |
| MLA | Liu, Guorui,et al."Comparison of PCDD/F levels and profiles in fly ash samples from multiple industrial thermal sources".CHEMOSPHERE 133.1(2015):68-74. |
入库方式： OAI收割
来源：生态环境研究中心
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